He kept yawning in class this morning. That is _____ he stayed up late doing his homework last night.
—Have you been wasting time on computer games again? — . I’ve been studying a lot and I need a break.
The criminals were _______ with breaking into the civilians’houses.
Can you recommend a novel that is _______reading to me?
She went by without saying hello to me; I couldn’t stand _______ like this.
— How is everything going?— It couldn’t be _______, for I lost my wallet this morning.